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Multiple Choice Quiz
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Here is an opportunity for you to test your knowledge of the concepts covered in Chapter 2 of your text. Take some time to complete the exam below to see how much you have learned - OR CLEAN THE DUST BUNNIES UNDER YOUR BED!

For each question that follows, choose the BEST answer.

1
Which of the following is NOT a type of silicate structure?
A)sheet silicate
B)single-chain silicate
C)double chain silicate
D)Mobyus strip silicate
2
Petroleum is NOT a mineral. Why?
A)It does not have a definite chemical composition.
B)It does not have a crystalline structure.
C)It is not a solid.
D)All of these are reasons why petroleum is not a mineral.
3
The silicon-oxygen tetrahedron is:
A)The building block of the silicate minerals.
B)composed of 4 oxygen atoms surrounding 1 silicon atom.
C)composed of the two most abundant elements on Earth.
D)all of these.
4
The mineral, quartz, is an example of:
A)a single-chain silicate
B)a framework silicate
C)a sheet silicate
D)a double-chain silicate
5
Which of the following is NOT considered a physical property of minerals?
A)hardness
B)streak
C)silicate structure
D)luster
6
Select the statement about cleavage which is NOT correct:
A)a plane along which crystals break easily
B)a plane that reflects light
C)it is well developed in all minerals
D)there may be more than one cleavage plane in some minerals
7
Atoms with either a positive or negative charge are called:
A)isotopes
B)ions
C)elements
D)radioactive
8
For a given mineral, the physical property which displays the greatest variation is:
A)color
B)luster
C)hardness
D)streak
9
A unit of matter which cannot be broken down into other substances by ordinary chemical methods is:
A)a mineral
B)a molecule
C)a compound
D)an element
10
Which of the following is NOT true of a single silica tetrahedron?
A)the atoms of the tetrahedron are strongly bonded together
B)it has a net negative charge
C)it has four silicon atoms
D)all of these are true of a single silica tetrahedron.
11
The ability of a mineral to break along preferred directions is called:
A)fracture
B)crystal form
C)hardness
D)cleavage
12
Which of the following common items is NOT a mineral?
A)salt
B)ice
C)talcum powder
D)asphalt
13
Oxygen accounts for what percent by weight (approximately) of all matter in Earth's crust?
A)12%
B)24%
C)36%
D)47%
14
Muscovite is:
A)a double chain silicate
B)a framework silicate
C)a sheet silicate
D)a single chain silicate
15
Neutrons are sub-atomic particles:
A)found in the nucleus of atoms
B)with a negative electrical charge
C)with a positive electrical charge
D)which orbit the nucleus of the atom
16
An ion with a surplus of electrons is:
A)negatively charged
B)positively charged
C)neutral
D)none of these
17
Isotopes:
A)have variable numbers of protons
B)have variable numbers of electrons
C)have the same number of neutrons and protons
D)none of these
18
Which of the following elements is NOT among the 8 most abundant elements in Earth's crust?
A)potassium
B)calcium
C)carbon
D)iron
19
Ions that are deficient in electrons are:
A)ions
B)isotopes
C)positively charged atoms.
D)Negatively charged atoms.
20
Atoms become ions when they:
A)gain or lose electrons
B)gain or lose protons
C)gain or lose neutrons
D)gain or lose mass







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